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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: A prospective, double-blind, randomized controlled trial of treatment of atlantoaxial instability with C1 posterior arches >4 mm by comparing C1 pedicle with lateral mass screws fixation

Fig. 3

A patient who presented with atlantoaxial instability and cervical spinal cord injury underwent atlantoaxial fusion and internal fixation. a and b Dynamic radiographs showing atlantoaxial instability. c On MRI, the cervical spinal cord showing a hyperintense signal on T2-weighted images. d Lateral X-ray after surgery revealing good fracture reduction and internal fixation. e and f Postoperative sagittal reconstruction CT scans showing atlantoaxial internal fixation with atlas lateral mass screw and axis pedicle screw

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